Home / 12,975.40-17,898.85-8,506.36

Finding the Fourth Proportional to 12,975.40, 17,898.85 and 8,506.36

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Solution

The fourth proportional to 12,975.40, 17,898.85 and 8,506.36 is: 11,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.40 : 17,898.85 = 8,506.36 : x
  2. Step 2: Convert to fraction form
    12,975.40/17,898.85 = 8,506.36/x
  3. Step 3: Cross multiply
    12,975.40x = 17,898.85 × 8,506.36
  4. Step 4: Simplify right side
    12,975.40x = 152,254,061.69
  5. Step 5: Solve for x
    x = 152,254,061.69/12,975.40
  6. Step 6: Final answer
    x = 11,734.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.